Multi-spectral two-dimensional imaging spectrometer
CA 2294840 C · Owner: Optical Insights, Llc · Inventors: Hopkins, Mark F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-spectral two-dimensional imaging spectrometer (10) includes a combination of achromatic, well-corrected lenses (14) for imaging a twodimensional scene on an internal field stop (20). The light emanating from this intermediate image is collimated with another well-corrected lens (24). A spectral separation subassembly (22) that divides the incident light into multiple, identical, and independent arms is placed in the collimated space following the collimating lens (24). The light in each arm is spectrally filtered based on the properties of an interference filter (30) in each arm. An imaging subassembly (32) composed of a well-corrected lens (34) forms contiguous images onto …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 9, 1998 and granted April 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.